
© 2021 Staheli West
145
Faults
Fault 1274: Initial Boiler Fill Is Taking Longer Than Expected
This indicates it is taking longer than expected for the water to reach the low water cut off switches.
(11 minutes)
Causes
Troubleshooting
Fixes
• Feed water isolation valve is
closed.
• Check feed water isolation
valve in rear door area.
• Open feed water isolation valve
completely.
• Partially plugged supply water
filter.
• Clean supply water filter.
• Supply water isolation valve is
partially closed.
• Check supply water isolation
valve in rear door area.
• Open supply water isolation
valve completely.
Feed W
at
er Actua
tor Not Opening
• Blown fuse #11 (main fuse
block).
• Check fuse for blown
symptoms.
• Replace fuse #11 (5 amp).
• Faulty feed water actuator.
• Test for functionality in
Manual
Mode.
• Swap connection with
blowdown actuator to confirm
faulty actuator.
• Replace feed water actuator.
• Faulty feed water actuator
wiring.
• Inspect the wiring for ground,
continuity, and proper voltage.
• Repair/Replace wiring.
• Faulty check valve.
• Check the check valve in the
feed water system.
• Replace the faulty check valve.
• Plugged/Blocked sparge tube.
• Inspect sparge tube holes.
• Clean/Re-drill holes in sparge
tube.
• Faulty feed water pump flow
control.
• To adjust the flow control to
2.4 gpm, turn the screw counter
clockwise till it stops, then turn
screw clockwise one full rotation.
• Adjust feed water pump flow
control to 2.4 gpm.
Fault 1275: Reaching Boiler Water Fill Target Is Taking Longer Than Expected
This indicates it is taking longer than expected for the water to reach the boiler fill target.
(3 minutes)
•
See Fault 1274.
Summary of Contents for DewPoint 331
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